Results 81 to 90 of about 1,162,554 (311)

Numerical simulations of sand‐screen performance in unconsolidated prepacked gravel screen

Energy Science & Engineering
This work addresses the ongoing challenge of optimizing sand control screens, attributed to a limited understanding of screen blocking. A novel one‐way computational fluid dynamics and discrete element method (CFD–DEM) coupling technique is presented to ...
Chengyun Ma, Yihua Dou, Jingen Deng, Cheng Hui, Kai Zhao, Yongcun Feng, Liangbin Dou   +6 more
doaj   +1 more source

CFD-DEM simulation of locomotive sanders

, 2018
This study presents the development and results of a numerical model of a locomotive sander system. Locomotive sanders are used to optimize traction between the train wheels and railhead by spraying sand into the interface. It has been previously shown that a large fraction of sand sprayed by the sanders does not make it through the wheel-rail nip ...
openaire   +1 more source

A Steerable and Expandable Magnetic Aspiration Catheter for Enhanced Aspiration Thrombectomy

Advanced Intelligent Systems, EarlyView.
This article presents a novel magnetic aspiration catheter (MAC) that can be both actively steered and undergo distal‐end expansion via externally applied magnetic fields. The MAC facilitates precise branch selection and enhances clot engagement by improving endovascular navigation and aspiration efficiency. Phantom experiments validate its feasibility
Hakjoon Lee, Xiao Dong, Dong‐in Kim, A. M. Masum Bulbul Chowdhury, Nader Latifi Gharamaleki, Jin‐young Kim, Sung Won Youn, Hongsoo Choi   +7 more
wiley   +1 more source

Using the Lubrication Approximation to Model the Effects of Viscosity in DEM Simulations for Complex Flow Regimes

KONA Powder and Particle Journal
This study explores an efficient approach to modelling the flow of particles in wet granular systems using the Discrete Element Method (DEM). Typically, when particles move in a viscous fluid, DEM is coupled with Computational Fluid Dynamics (CFD) or ...
David N. de Klerk, Indresan Govender, Taswald L. Moodley, Aubrey N. Mainza   +3 more
doaj   +1 more source

Hydrate blockage simulation based on CFD-DEM coupling method

You-qi chuyun, 2020
In the high pressure and low temperature conditions during production and transportation of subsea oil andgas, hydrate is formed easily, which could cause the risk of pipeline blockage.
Wenqing LI, Junao WANG, Xu DUAN, Hongye ZU, Haotian LIU, Haiyuan YAO, Bohui SHI, Jing GONG   +7 more
doaj   +1 more source

Adaptive Multi-Grid Methods for Parallel CFD Applications [PDF]

, 2014
Computational fluid dynamic (CFD) computations are memory and time intensive and need to be executed in parallel for larger computational domains. In order to produce physical accurate solutions, adaptive grid setups have to be chosen as the memory and ...
Mundani, Ralf-Peter, Rank, Ernst, Frisch, Jerome   +2 more
core   +1 more source

Microrobotic Catheterization of the Ophthalmic Artery for Targeted Treatment of Retinoblastoma

Advanced Intelligent Systems, EarlyView.
A microrobotic platform is presented that allows teleoperated and autonomous navigation of flow‐driven magnetic microcatheters, MagFlow, into the ophthalmic artery for superselective intra‐arterial infusion of chemotherapy to treat retinoblastoma. Extensive benchtop validations with patient‐derived biomimetic phantoms under optical and fluoroscopic ...
Artur Banach, Mehdi Krichen, Julian Raub, Christina Stathopoulos, Bruno Bartolini, Mahmut Selman Sakar   +5 more
wiley   +1 more source

Integration of CFD tools in aerodynamic design of contra-rotating propellers blades [PDF]

, 2011
A strategy for Contra-Rotating Open Rotors blades design is presented. It is based on several analytical or CFD tools with increasing levels of accuracy. A preliminary design is made with a lifting-line code. These first geometries are then validated and
Béchet, Sylvain, Negulescu, Camil A., Chapin, Vincent, Simon, Frank   +3 more
core  

EMG‐Driven Telemetry and Inference System for Fish: Pose Reconstruction and Flow Sensing

Advanced Intelligent Systems, EarlyView.
This work introduces an electromyography (EMG)‐driven telemetry framework that reconstructs body pose and infers hydrodynamic conditions in freely swimming fish. A custom 16‐channel archival system records intramuscular EMG, enabling deep‐learning models to decode joint kinematics, classify flow regimes, and reveal channel‐efficient sensing strategies.
Rahdar Hussain Afridi, Waqar Hussain Afridi, Muhammad Hamza, Ahsan Tanveer, Mingxin Wu, Xingwen Zheng, Liang Li, Guangming Xie   +7 more
wiley   +1 more source

Numerical Study of Solid–liquid Two-phase Flows and Erosion in a Y-type Slurry Valve with Different Seat Structures [PDF]

Journal of Applied Fluid Mechanics
As a common industrial valve solution in slurry pipeline systems, Y-type slurry valves must be designed with properly shaped valve seat sealing rings to alleviate particle erosion and keep the valve operating in optimal condition.
G. Zhang, H. Yi Zhang, J. L. Xin, D. S. Chen, Z. Lin   +4 more
doaj   +1 more source